October 26, 2016

Homework Help: ap calculus

Posted by muffy on Friday, September 18, 2009 at 8:52pm.

The height s of a ball, in feet, thrown with an initial velocity of 112 feet per second from an initial height of 6 feet is given as a function of time t (in seconds) by

1. What is the maximum height of the ball?

2. At what time does the maximum height occur?

I know how to find the maximum height using the formula -b/2a and I got 3.5. Usually when I find the maximum height I would plug 3.5 into the original equation. The problem says initial height of 6 feet which is not in the equation presented to me so I'm confused about how to solve for the time if the 6 feet is supposed to be somewhere.

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